* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Arial', sans-serif;
  background-color: #f9f9f9;
  color: #333;
  line-height: 1.6;
}

#contenedor {
  max-width: 900px;
  margin: 20px auto;
  background-color: #E5E7E9;
  padding: 20px 30px;
  box-shadow: 0 0 10px rgba(0,0,0,1.0);
  border-radius: 10px;
}

/* Header */
header {
  border-bottom: 2px solid #004080;
  margin-bottom: 20px;
  padding-bottom: 10px;
}

header h1 {
  color: #004080;
  font-size: 2rem;
  margin-bottom: 10px;
}

/* Navegación */
nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}

nav ul li a {
  text-decoration: none;
  color: #5DADE2;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}

nav ul li a:hover,
nav ul li a.activo {
  background-color: #d6eaf8;
  color: #004080;
}

/* Sección lista de artículos */
#lista-articulos article {
  border-bottom: 1px solid #ddd;
  padding: 15px 0;
}

#lista-articulos article:last-child {
  border-bottom: none;
}

#lista-articulos h2 {
  font-size: 1.5rem;
  color: #002050;
  margin-bottom: 8px;
}

#lista-articulos h2 a {
  text-decoration: none;
  color: #004080;
}

#lista-articulos h2 a:hover {
  text-decoration: underline;
}

#lista-articulos p {
  font-size: 1rem;
  margin-bottom: 10px;
  color: #444;
}

.leer-mas {
  display: inline-block;
  padding: 6px 14px;
  background-color: #d6eaf8;
  color: #004080;
  border: 1px solid #aed6f1;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 1px 1px 2px rgba(0,0,0,0.1);
} /* ← acá faltaba el cierre */



.leer-mas:hover {
  background-color: #aed6f1;
  color: #002d5a;
  border-color: #85c1e9;
  text-decoration: none;
  box-shadow: 1px 1px 5px rgba(0,0,0,0.15);
}

/* Footer */
footer {
  text-align: center;
  margin-top: 30px;
  padding-top: 15px;
  border-top: 1px solid #ccc;
  font-size: 0.9rem;
  color: #666;
}

/* Responsive */
@media (max-width: 600px) {
  nav ul {
    flex-direction: column;
    gap: 10px;
  }

  nav ul li a {
    display: block;
    text-align: center;
  }
}